1LKS

HEN EGG WHITE LYSOZYME NITRATE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.1 Å

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structures of monoclinic lysozyme iodide at 1.6 A and of triclinic lysozyme nitrate at 1.1 A.

Steinrauf, L.K.

(1998) Acta Crystallogr.,Sect.D 54: 767-780

  • Primary Citation of Related Structures:  
  • Also Cited By: 1HF4

  • PubMed Abstract: 
  • Hen egg-white lysozyme is one of the most thoroughly studied of enzymes and has been the subject of study by many methods, including X-ray crystallography. The present work extends the X-ray crystallography to higher resolution, includes the position ...

    Hen egg-white lysozyme is one of the most thoroughly studied of enzymes and has been the subject of study by many methods, including X-ray crystallography. The present work extends the X-ray crystallography to higher resolution, includes the positions of the anions, and examines the contacts of the neighbors in greater detail. Data were collected at room temperature on a Rigaku R-axis area detector with rotating-anode X-ray generator to 1.6 A resolution for monoclinic lysozyme iodide at pH 4.0, to 1.8 A for monoclinic lysozyme iodide at pH 8.0, and to 1.1 A resolution for triclinic lysozyme nitrate at pH 4.5. The structures have been refined by SHELX93 with the expected number of anion sites being accounted for. Two regions of the protein have been found to be variable: residues 65-75 and 99-104. Except for 65-75 and 99-104, lysozyme is a very stable molecule with the crystal forms being held together by the electrostatic contacts of the anions and by layers of water molecules. The anion positions can be described as paired half sites, each half being contributed by a different lysozyme molecule. The many different crystal forms of lysozyme may be due to different combinations of the many such half sites on the surface. A hypothesis is presented for lysozyme in the different crystal forms and which may be extended to behavior in solution. Suggestions for future crystallographic research are proposed, involving anions of different shape and charge.


    Related Citations: 
    • Preliminary X-Ray Data for Some New Crystalline Forms of Beta-Lactoglobulin and Hen Egg-White Lysozyme
      Steinrauf, L.K.
      (1959) Acta Crystallogr. 12: 77
    • Studies of Monoclinic Hen Egg-White Lysozyme. Iv. X-Ray Refinement at 1.8 A Resolution and a Comparison of the Variable Regions in the Polymorphic Forms
      Rao, S.T.,Sundaralingam, M.
      (1996) Acta Crystallogr.,Sect.D 52: 170
    • Studies of Monoclinic Hen Egg White Lysozyme. II. The Refinement at 2.5 A Resolution--Conformational Variability between the Two Independent Molecules
      Rao, S.T.,Hogle, J.,Sundaralingam, M.
      (1983) Acta Crystallogr.,Sect.C 39: 237


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202-5122, USA. lsteinra@mail.nsysu.edu.tw




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
LYSOZYME
A
129Gallus gallusMutation(s): 0 
Gene Names: LYZ
EC: 3.2.1.17
Find proteins for P00698 (Gallus gallus)
Go to Gene View: LYZ
Go to UniProtKB:  P00698
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NO3
Query on NO3

Download SDF File 
Download CCD File 
A
NITRATE ION
N O3
NHNBFGGVMKEFGY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.1 Å
  • Space Group: A 1
Unit Cell:
Length (Å)Angle (°)
a = 31.970α = 94.57
b = 65.080β = 111.56
c = 27.250γ = 82.98
Software Package:
Software NamePurpose
SHELXL-93phasing
SHELXL-93model building
MSCdata collection
MSCdata scaling
MSCdata reduction
SHELXL-93refinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1997-10-09 
  • Released Date: 1998-04-29 
  • Deposition Author(s): Steinrauf, L.K.

Revision History 

  • Version 1.0: 1998-04-29
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance